Forefront Protection 2010 for Exchange Server (FPE) enables you to create and configure the following types of filters:
- Allowed senders—Allows specific
senders to bypass certain filter types. For more information, see
Creating an
allowed senders filter list.
- File—Filters messages that contain
certain names or types of file attachments. For more information,
see Creating a
file filter list.
- Keyword—Filters messages that contain
keywords in the message body. For more information, see Creating a keyword
filter list.
- Sender-domain—Filters messages from
specific senders or domains. For more information, see Creating a sender-domain
filter list.
- Subject line—Filters messages that
contain certain words or phrases in the subject line. For more
information, see Creating a subject line
filter list.
The following table illustrates which filters can be used with each scan job type.
| Filter type | Transport | Realtime | Scheduled | On-Demand |
|---|---|---|---|---|
|
Allowed senders |
Yes |
No |
No |
No |
|
File |
Yes |
Yes |
Yes |
Yes |
|
Keyword |
Yes |
No |
No |
No |
|
Sender-domain |
Yes |
Yes |
Yes |
Yes |
|
Subject line |
Yes |
Yes |
Yes |
Yes |
 Note: |
|---|
When you configure the realtime, scheduled, and on-demand
scans, the default is to scan only messages that have attachments.
If you have also created subject line filters or sender-domain
filters, those filters only apply to mail that has
attachments, not to all mail. If you change a specific scan job
type to scan all mail (by selecting the Scan message body
check box in the user interface for the realtime and scheduled
scans, or by using the Set-FseOnDemandScan -BodyScanning
$true Windows PowerShell command for the on-demand scan),
then the filters apply to all mail related to that scan job type.
In other words, the filters are applied to whatever mail is being
scanned for malware. |